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BOSTON MARATHON 2023

Andrea London

Bib: 25093•F

FL

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F55-59)
#0 / 815
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
10:45/mi
33:25
↑ 97↓ 3451.5%
10K· 6.21 mi
10:47/mi
1:06:56
↑ 79↓ 1380.4%
15K· 9.32 mi
11:10/mi
1:41:38
↑ 67↓ 78
20K· 12.43 mi
11:18/mi
2:16:44
↑ 106↓ 860.1%
Half· 13.11 mi
11:02/mi
2:24:16
↑ 19↓ 370.5%
25K· 15.53 mi
11:47/mi
2:52:49
↑ 66↓ 880.2%
30K· 18.64 mi
12:19/mi
3:31:04
↑ 181↓ 1480.2%
20M
11:31/mi
3:46:43
↑ 64↓ 500.2%
21M
12:40/mi
3:59:23
↑ 106↓ 241.6%
35K· 21.75 mi
11:23/mi
4:07:54
↑ 17↓ 861.7%
23M
12:05/mi
4:23:02
↑ 23↓ 630.6%
24M
11:46/mi
4:34:48
↓ 821.3%
40K· 24.85 mi
11:20/mi
4:44:29
↓ 200.3%
25.2M
13:20/mi
4:49:05
↑ 13↓ 160.2%
Finish· 26.22 mi
10:54/mi
5:00:11
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:24:16
Pace11:00 /mi
2nd Half
Distance13.11 mi
Time2:35:55
Pace11:54 /mi
📊Positive Split: 8.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:55:4833:2510:4533:25
10:45
-
10K
6.21 mi12:29:191:06:5610:4633:31
10:47
+0:02
15K
9.32 mi13:04:011:41:3810:5434:42
11:10
+0:23
20K
12.43 mi13:39:072:16:4411:0035:06
11:18
+0:08
Half
13.11 mi13:46:392:24:1611:007:32
11:02
-0:16
25K
15.53 mi14:15:122:52:4911:0728:33
11:47
+0:45
30K
18.64 mi14:53:273:31:0411:1938:15
12:19
+0:32
20M
20.00 mi15:09:063:46:4311:2015:39
11:31
-0:48
21M
21.00 mi15:21:463:59:2311:2412:40
12:40
+1:09
35K
21.75 mi15:30:174:07:5411:248:31
11:23
-1:17
23M
23.00 mi15:45:254:23:0211:2615:08
12:05
+0:42
24M
24.00 mi15:57:114:34:4811:2711:46
11:46
-0:19
40K
24.85 mi16:06:524:44:2911:279:41
11:20
-0:26
25.2M
25.20 mi16:11:284:49:0511:284:36
13:20
+2:00
Finish
26.22 mi16:22:345:00:1111:2711:06
10:54
-2:26

Checkpoints & Pacing

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

10:45 /mi

Average Pace

11:27 /mi

Slowest Pace

13:20 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:18:02

26% of race

Time at Steady Pace

1:51:11

37% of race

Time at Slower Pace

1:50:58

37% of race

Average Pace: 11:27 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:55:4833:2510:4533:25
10:45
#25295
10K
6.21 mi12:29:191:06:5610:4633:31
10:47
#25213
15K
9.32 mi13:04:011:41:3810:5434:42
11:10
#25308
20K
12.43 mi13:39:072:16:4411:0035:06
11:18
#25220
Half
13.11 mi13:46:392:24:1611:007:32
11:02
#25211
25K
15.53 mi14:15:122:52:4911:0728:33
11:47
#25189
30K
18.64 mi14:53:273:31:0411:1938:15
12:19
#25131
20M
20.00 mi15:09:063:46:4311:2015:39
11:31
#25017
21M
21.00 mi15:21:463:59:2311:2412:40
12:40
#24969
35K
21.75 mi15:30:174:07:5411:248:31
11:23
#24936
23M
23.00 mi15:45:254:23:0211:2615:08
12:05
#24915
24M
24.00 mi15:57:114:34:4811:2711:46
11:46
#24885
40K
24.85 mi16:06:524:44:2911:279:41
11:20
#24833
25.2M
25.20 mi16:11:284:49:0511:284:36
13:20
#24836
Finish
26.22 mi16:22:345:00:1111:2711:06
10:54
#24828
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi25295106081060825387(Top 95%)10677(Top 93%)10677(Top 1310%)
10K6.21 mi3.10 mi25213+8210548+6010548+6025154(Top 94%)10525(Top 92%)10525(Top 1291%)
15K9.32 mi3.11 mi25308-9510617-6910617-6925387(Top 95%)10677(Top 93%)10677(Top 1310%)
20K12.43 mi3.11 mi25220+8810582+3510582+3525001(Top 94%)10478(Top 92%)10478(Top 1286%)
Half13.11 mi0.68 mi25211+910577+510577+524996(Top 94%)10495(Top 92%)10495(Top 1288%)
25K15.53 mi2.42 mi25189+2210579-210579-224961(Top 94%)10495(Top 92%)10495(Top 1288%)
30K18.64 mi3.11 mi25131+5810560+1910560+1924821(Top 93%)10469(Top 92%)10469(Top 1285%)
20M20.00 mi1.36 mi25017+11410505+5510505+5523554(Top 88%)9820(Top 86%)9820(Top 1205%)
21M21.00 mi1.00 mi24969+4810492+1310492+1323681(Top 89%)9914(Top 87%)9914(Top 1216%)
35K21.75 mi0.75 mi24936+3310475+1710475+1723952(Top 90%)10110(Top 89%)10110(Top 1240%)
23M23.00 mi1.25 mi24915+2110470+510470+524125(Top 91%)10197(Top 89%)10197(Top 1251%)
24M24.00 mi1.00 mi24885+3010467+310467+324230(Top 91%)10290(Top 90%)10290(Top 1263%)
40K24.85 mi0.85 mi24833+5210440+2710440+2722940(Top 86%)9634(Top 84%)9634(Top 1182%)
25.2M25.20 mi0.35 mi24836-310443-310443-324380(Top 92%)10367(Top 91%)10367(Top 1272%)
Finish26.22 mi1.02 mi24828+810449-610449-623790(Top 89%)10054(Top 88%)10054(Top 1234%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 95%
×21story building
+97ft-345ft

Overall

25387

Females

10677

F55-59

10677

5K→10K

3.1 - 6.2 mi

Top 94%
×5story building
+79ft-138ft

Overall

25154

Females

10525

F55-59

10525

10K→15K

6.2 - 9.3 mi

Top 95%
×3story building
+67ft-78ft

Overall

25387

Females

10677

F55-59

10677

15K→20K

9.3 - 12.4 mi

Top 94%
×5story building
+106ft-86ft

Overall

25001

Females

10478

F55-59

10478

20K→Half

12.4 - 13.1 mi

Top 94%
×2story building
+19ft-37ft

Overall

24996

Females

10495

F55-59

10495

Half→25K

13.1 - 15.5 mi

Top 94%
×4story building
+66ft-88ft

Overall

24961

Females

10495

F55-59

10495

25K→30K

15.5 - 18.6 mi

Top 93%
×9story building
+181ft-148ft

Overall

24821

Females

10469

F55-59

10469

30K→20M

18.6 - 20.0 mi

Top 88%
×5story building
+64ft-50ft

Overall

23554

Females

9820

F55-59

9820

20M→21M

20.0 - 21.0 mi

Top 89%
×8story building
+106ft-24ft

Overall

23681

Females

9914

F55-59

9914

21M→35K

21.0 - 21.8 mi

Top 90%
×7story building
+17ft-86ft

Overall

23952

Females

10110

F55-59

10110

35K→23M

21.8 - 23.0 mi

Top 91%
×5story building
+23ft-63ft

Overall

24125

Females

10197

F55-59

10197

23M→24M

23.0 - 24.0 mi

Top 91%
×6story building
+12ft-82ft

Overall

24230

Females

10290

F55-59

10290

24M→40K

24.0 - 24.9 mi

Top 86%
×1story
+6ft-20ft

Overall

22940

Females

9634

F55-59

9634

40K→25.2M

24.9 - 25.2 mi

Top 92%
×1story
+13ft-16ft

Overall

24380

Females

10367

F55-59

10367

25.2M→Finish

25.2 - 26.2 mi

Top 89%
×2story building
+22ft-21ft

Overall

23790

Females

10054

F55-59

10054

Passing Analysis

Category:
Athletes Passed
1034
Passed By
567
Net Change
+467
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25295
5K → 10K206124+82#25295#25213
10K → 15K70165-95#25213#25308
15K → 20K13244+88#25308#25220
20K → Half3223+9#25220#25211
Half → 25K8967+22#25211#25189
25K → 30K9739+58#25189#25131
30K → 20M1184+114#25131#25017
20M → 21M6315+48#25017#24969
21M → 35K4512+33#24969#24936
35K → 23M4322+21#24936#24915
23M → 24M4313+30#24915#24885
24M → 40K6311+52#24885#24833
40K → 25.2M710-3#24833#24836
25.2M → Finish2618+8#24836#24828
TOTALS1034567+467
📊

Passing Visuals

Category:
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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing